One pig out shouldn't spoil a week of hard work. Good to see you are getting fab results. Wish I was, lose a half pound gain a whole and rollar coasted my way to a 10lb gain GRRR.
I get the diet, I'm eating green, green, green, pasta, couscous, potatoes, beans - only syns is wine and that's occasionally.
Even if you gain, the support of your leader and the group can be enough for you to keep on track.